[gitg] css: use disabled instead of deprecated insensitive

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 4688fafbd11a6d36060aa3757957f889e4b62604
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Fri Jan 22 22:23:22 2016 +0100

    css: use disabled instead of deprecated insensitive

 gitg/resources/ui/style.css |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gitg/resources/ui/style.css b/gitg/resources/ui/style.css
index af59159..8b6d515 100644
--- a/gitg/resources/ui/style.css
+++ b/gitg/resources/ui/style.css
@@ -42,8 +42,8 @@ GtkToolbar#toolbar_subnav {
        border-bottom: 0px;
 }
 
-GitgSidebar:insensitive,
-GitgCreateTagDialog GtkTextView:insensitive {
+GitgSidebar:disabled,
+GitgCreateTagDialog GtkTextView:disabled {
        color: @insensitive_fg_color;
 }